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简介

Pyjnius是一个用于访问Java类的Python库。

适用场景:极个别的加密算法等内容,用python不方便实现或者实现较耗时,可基于Pyjnius把java类当做python库使用。

文档:http://pyjnius.readthedocs.io/en/latest/installation.html

下载地址:https://pypi.python.org/pypi"_blank" href="https://github.com/kivy/pyjnius/blob/master/docs/source/index.rst" rel="external nofollow" >https://github.com/kivy/pyjnius/blob/master/docs/source/index.rst

安装

先安装Java JDK 和JRE、Cython

#
pip3 install cython
# pip3 install jniusx
Collecting jniusx
Downloading jniusx - 1.0.5. tar.gz
Requirement already satisfied: six >=
	1.7.0 in /opt/python
3.5 / lib / python3.5 / site - packages(
	from jniusx)
Requirement already satisfied: cython in
	/opt/python
3.5 / lib / python3.5 / site - packages(
	from jniusx)
Installing collected packages: jniusx
Running setup.py install
for jniusx...done
Successfully installed jniusx - 1.0.5

注意:jnius安装的坑比较多,请参考http://stackoverflow.com/search"htmlcode">

#!/usr/bin/env python

#- * -coding: utf - 8 - * -
	#jnius_quick2.py
# Author Rongzhong Xu 2016 - 08 - 02 wechat:
	pythontesting
# https: //bitbucket.org/china-testing/python-chinese-library/src
	""
"
jnius demo
Tested in python2.7
	""
"
from jnius
import autoclass
System = autoclass('java.lang.System')
System.out.println('Hello World')

堆栈实例:

#!/usr/bin/env python

#- * -coding: utf - 8 - * -
	#jnius_quick1.py
# Author Rongzhong Xu 2016 - 08 - 02 wechat:
	pythontesting
# https: //bitbucket.org/china-testing/python-chinese-library/src
	""
"
jnius demo
Tested in python2.7
	""
"
from jnius
import autoclass
Stack = autoclass('java.util.Stack')
stack = Stack()
stack.push('hello')
stack.push('world')
print(stack.pop())# -- > 'world'
print(stack.pop())# -- > 'hello'

调用java String的hashCode

#!/usr/bin/env python

#- * -coding: utf - 8 - * -
	#jnius_quick3.py
# Author Rongzhong Xu 2016 - 08 - 02 wechat:
	pythontesting
# https: //bitbucket.org/china-testing/python-chinese-library/src
	""
"
jnius demo: Call java String 's hashCode
Tested in python2.7
	""
"
from jnius
import autoclass
String = autoclass('java.lang.String')
print(String("hello").hashCode())

调用jar包

#!python

#
vi com / sample / Beach.java
package com.sample;
public class Beach {
	private String name;
	private String city;
	public Beach(String name, String city) {
		this.name = name;
		this.city = city;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getCity() {
		return city;
	}
	public void setCity(String city) {
		this.city = city;
	}
}
#
echo Main - Class: Beach > manifest.txt
# jar cvfm Test.jar manifest.txt com /
	sample /*.class*/

测试:

#!python

#
ipython
Python 3.5.2(
	default, Nov 7 2016, 18: 53: 51)
Type "copyright", "credits"
or "license"
for more information.
IPython 5.1.0--An enhanced Interactive Python
	.
"Tom", "Shenzhen")
In[6]: s.getName()
Out[6]: 'Tom'
``
`

封装某模块的加密机制为python包实例:

* 拷贝: com cn org 到新建的临时目录

* echo Main-Class: AESUtil >manifest.txt

* jar cvfm Test.jar manifest.txt *

测试代码:

`
``
python
# - * -coding: utf - 8 - * -
	#注意要先把jar加载CLASSPATH环境变量。
from jnius
import autoclass
AESUtil = autoclass(
	'com.oppo.sso.util.AESUtil')
email = AESUtil.aesEncrypt(
	"hello@126.com", "我是一个加密密钥")
print(email)# !python
# ipython
Python 3.5.2(
	default, Nov 7 2016, 18: 53: 51)
Type "copyright", "credits"
or "license"
for more information.
IPython 5.1.0--An enhanced Interactive Python
	.
"Tom", "Shenzhen")
In[6]: s.getName()
Out[6]: 'Tom'
``
`

封装某模块的加密机制为python包实例:

* 拷贝: com cn org 到新建的临时目录

* echo Main-Class: AESUtil >manifest.txt

* jar cvfm Test.jar manifest.txt *

测试代码:

`
``
python
# - * -coding: utf - 8 - * -
	#注意要先把jar加载CLASSPATH环境变量。
from jnius
import autoclass
AESUtil = autoclass(
	'com.oppo.sso.util.AESUtil')
email = AESUtil.aesEncrypt(
	"hello@126.com", "我是一个加密密钥")
print(email)

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。

标签:
Python,pyjnius库,访问,java类

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